Note:Installtheblackprotectivecoverthatwasremovedfromthenewmicroprocessorontothe
defectivemicroprocessoraftertheinstallationiscomplete.
10.Securethemicroprocessorinthesocketbypivotingthesmallhandledownward.Besuretolockit
intoposition.
11.Positiontheheatsinkontheretentionmodulesothatthefourscrewsarealignedwiththepostsonthe
systemboard.Tightenthefourscrewstosecuretheheatsinktothesystemboard.
12.Goto“CompletingtheFRUreplacement”onpage81.
Replacingthesystemboard
Thissectionprovidesinstructionsonhowtoreplacethesystemboard.
1.Openthecomputercover.See“Openingthecover”onpage68.
2.Takenoteofthelocationofallcableconnectionsonthesystemboardanddisconnectallcables.See
“Systemboardlocations”onpage68.
3.Removethescrewsthatsecurethesystemboardtothecover.
4.Liftthesystemboardoffofthecover.
5.Removethememorymodulesfromthefailingsystemboardandinstalltheminthesamelocationon
thenewsystemboard.
72HardwareMaintenanceManual